Mohd Nazree Derman
Thumbnail Image
Preferred name
Mohd Nazree Derman
Official Name
Mohd Nazree , Derman
Alternative Name
Derman, Mohd N.
Derman, Mohd Nazree
Derman, M. Nazree
Derman, M. N.
Derman, Nazree
Main Affiliation
Scopus Author ID
36782092800
Researcher ID
G-4103-2017

Research Output

Filters

22 1
22
Reset filters

Settings
Now showing 1 - 10 of 22
  • Publication
    Surface characterization study of nanoporous anodic aluminium oxide thin film synthesized by single-step anodization
    ( 2021-05-03)
    Shahidah Arina Shamsuddin
    ;
    Mohd Nazree Derman
    ;
    Uda Hashim
    ;
    Ismail J.
    ;
    Muhammad Faheem Mohd. Tahir
    Nanoporous anodic aluminium oxide (AAO) thin film electrodes were prepared by using a single step anodization method in 0.3 M oxalic acid at 40 V for 1 h. Electrolyte temperature was controlled and maintained at 15 °C by using ice water bath. After anodized, AAO surfaces were etched by using 5% phosphoric acid (H3PO4) solution at 30 °C to remove the AAO top rough surfaces and widening the pores. Effect of different etching duration to the pore widening was investigated at 10, 20 and 30 minutes, respectively. Regularity of the pores arrangements before and after etching were analysed by fast fourier transform (FFT) profile images that were generated from FESEM images. From observation, well ordered nanoporous structures were successfully revealed after top rough surfaces were removed by etching. Pores sizes were also found to be increased with the increasing of etching duration. Further investigations were done by x-ray diffraction (XRD) analysis and fourier transform infra-red spectroscopy (FTIR) to characterize and find out the crystallinity properties and functionalities of AAO thin film electrode surfaces.
  • Publication
    Suppression of (Cu,Ni)6Sn5 Intermetallic Compound in Sn-0.7Cu-0.05Ni+1wt.TiO2 Solder Paste Composite Subjected to Isothermal Aging
    ( 2020-03-18)
    Mohd Said R.
    ;
    Norainiza Saud
    ;
    Salleh M.M.
    ;
    Mohd Nazree Derman
    This paper investigated the intermetallic compound (IMC) layer that formed in Sn-0.7Cu-0.05Ni+1wt.% TiO2 (SCNT) composite solder paste added with reinforcement (TiO2) particles. Besides, the growth of the IMC layer during subsequent aging at temperature of 75 °C, 125 °C and 150 °C also being studied. Scanning electron microscopy was used to observe the IMC growth and to measure the thickness of IMC layer. The interfacial IMC layer has been suppressed whereas the activation energy value of the composite solder paste was high (37.35 kJ/mol) which in turn improved the thermal stability of the IMC layer. Results also show the IMC formed at bulk solder microstructure of SCNT solder paste composite was refined. The presence of TiO2 particles has become the obstacle for the Cu atom diffusion from the substrate to the solder and Sn atom from the solder, thus, successful for the suppression of the IMC layer.
  • Publication
    Characterization of Al–Mg Alloy by Powder Metallurgy Technique
    ( 2023-01-01)
    Zuraidawani Che Daud
    ;
    Mohd Asri N.M.
    ;
    Mohd Nazree Derman
    The powder metallurgy Al has been widely used in the heavy industry, especially in precision technology. Unfortunately, these new materials are problematic in powder metallurgy production and corrosion problems. This research paper aims to study the influence of Mg contents (10, 25, 50, 75, and 90) wt% on microstructure and corrosion behavior on Al–Mg alloy by using powder metallurgy techniques. Al–Mg powder was mixed using a rotation mill with a rotation speed of 120 rpm for 30 min. Then, the mixed powders were compacted at a pressure of 150 MPa. Sintering was done in an argon-controlled atmosphere at a temperature of 500 Â°C. An optical microscope was used to observe the microstructure of sintered sample; meanwhile, X-ray diffraction (XRD) was used to analyze phase identification. A potentiostat was used to study the corrosion behavior of sintered Al–Mg alloy. The results revealed that Al–90 wt% Mg gives a high corrosion rate.
  • Publication
    The effect of aging time on microstructure and hardness value of AZ80 Mg Alloy
    ( 2020-11-24)
    Zuraidawani Che Daud
    ;
    Azahar S.H.
    ;
    Mohd Nazree Derman
    ;
    Nur Maizatul Shima Adzali
    ;
    Nur Hidayah Ahmad Zaidi
    ;
    Adnan S.A.
    AZ 80 Magnesium (Mg) alloy (AZ80) is the lightest structural metallic materials with good mechanical properties. However, Mg AZ80 has drawbacks which result in poor ductility and low strength where applications of Mg alloy have been restricted. The AZ80 has high aluminium content can cause the precipitation of ß-phase which is Mg17Al12 in Mg-Al alloy. It can affect the mechanical properties such as poor strengthening. This paper was discussed the effect of aging time on microstructure and hardness value of AZ80. The AZ80 samples were cut to 1cm × 1cm. Samples heat treated at 360 C for one-hour quenching in water. Then, samples aged at 170 C with different aging times (2 to 8 hours) with same quench. Optical Microscope (OM), Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD) and Vickers Microhardness machine were used to analyse the samples. As the results showed ß-Mg17Al12 phase was discontinuously distributed along the grain boundary throughout solid solution treatment. The ß-Mg17Al12 phase did not fully dissolve into the α-Mg phase and distributed along the grain boundary. The results showed that sample after 2 hours aging time with highest hardness value 62.5 HV is the optimum sample.
  • Publication
    AC and DC anodization on the electrochemical properties of SS304L: A comparison
    ( 2024-01-01)
    Azmi N.S.
    ;
    Mohd Nazree Derman
    ;
    Zuraidawani Che Daud
    This study investigates the application of alternating current (AC) and direct current (DC) anodization techniques on stainless steel 304L (SS304L) in an ethylene glycol and ammonium fluoride (NH4F) electrolyte solution to produce a nano-porous oxide layer. With limited research on AC anodizing of stainless steel, this study focuses on comparing AC and DC anodization in terms of current density versus time response, phase analysis using X-ray diffraction (XRD), and corrosion rate determined by linear polarization. Both AC and DC anodization were performed for 60 minutes at 50 V in an electrolyte solution containing 0.5% NH4F and 3% H2O in ethylene glycol. The results show that AC anodization exhibited higher current density compared to DC anodization. XRD analysis revealed the presence of ferrite (α-Fe) and austenite (γ-Fe) phases in the as-received specimen, while both AC and DC anodized specimens exhibited only the γ-Fe phase. The corrosion rate of the AC-anodized specimen was measured at 0.00083 mm/year, lower than the corrosion rate of the DC-anodized specimen at 0.00197 mm/year. These findings indicate that AC anodization on stainless steel offers advantages in terms of higher current density, phase transformation, and lower corrosion rate compared to DC anodization. These results highlight the need for further investigation and exploration of AC anodization as a promising technique for enhancing the electrochemical properties of stainless steel.
  • Publication
    Corrosion Resistance of Micro-Textured Surface Modified Alumina-Titania Coating
    ( 2020-03-18)
    Wahab J.A.
    ;
    Ghazali M.J.
    ;
    Mohd Nazree Derman
    Effect of micro-texture on the corrosion resistance of alumina-titania coated mild steel was investigated. The micro-texture was fabricated on the coating surface via laser surface texturing technique. Tafel extrapolation and immersion test was conducted to measure the corrosion resistance and corrosion mechanism of the coating in 3.5% NaCl solution. The results indicated that the micro-texture contributes to a significant improvement of corrosion resistance due to the formation small volume of air trapped in the micro-grooves, which resist the penetration of corrosive ions and reduce the area of solid-liquid interface. The WCA indicated that the textured surface had low wettability. The SEM analysis showed the occurrence of uniform corrosion. The analysis of EDS revealed that there was formation of corrosion product at the coating-substrate interface. In short, the resistance towards corrosion was increased up to 73% indicating that the resistivity of the coating against corrosion was improved by engraving the micro-texture on its surface.
  • Publication
    Hydrogen Evolution Reaction of AC Anodized Stainless Steel 304L
    ( 2023-01-01)
    Azmi N.S.
    ;
    Mohd Nazree Derman
    ;
    Zuraidawani Che Daud
    A novel method of anodizing stainless steel (SS) 304L with alternating current (AC) as the power source is presented in order to generate a porous oxide layer. This study aims to investigate the influence of AC anodizing of SS304L on hydrogen evolution reaction (HER) activity and characterize the morphology of oxide film formed. The AC anodization method was carried out using an AC power source in a solution of ammonium fluoride, NH4F, water, H2O and ethylene glycol at room temperature, with anodizing time ranging from 10 to 50 minutes. Scanning electron microscope (SEM) and a 3D profiler were used to characterize the surface morphology, and a potentiostat is used to study the behaviour of the HER. The results show that the oxide film gradually covered the SS304L surface and fully covered at 30 minutes anodizing time, then begin to crack at 40 and 50 minutes. The thickness of the layer reached its maximum at 5248.67 nm with pore size of 380.13 nm after 30 minutes and then gradually began to decrease. Notably, the lowest HER activity, measuring -426.58 mV, was detected after 30 minutes. These findings clarified the relationship between the AC anodizing time, oxide film morphology, and HER activity, making it easier to optimize stainless steel 304L for enhanced hydrogen evolution applications.
  • Publication
    An exploratory study on resistance spot welding of titanium alloy Ti-6Al-4V
    ( 2021-05-01)
    Fatmahardi I.
    ;
    Mustapha M.
    ;
    Ahmad A.
    ;
    Mohd Nazree Derman
    ;
    Lenggo Ginta T.
    ;
    Taufiqurrahman I.
    Resistance spot welding (RSW) is one of the most effective welding methods for titanium alloys, in particular Ti-6Al-4V. Ti-6Al-4V is one of the most used materials with its good ductility, high strength, weldability, corrosion resistance, and heat resistance. RSW and Ti-6Al-4V materials are often widely used in industrial manufacturing, particularly in automotive and aerospace industries. To understand the phenomenon of resistance spot weld quality, the physical and mechanical properties of Ti-6Al-4V spot weld are essential to be analyzed. In this study, an experiment was conducted using the Taguchi L9 method to find out the optimum level of the weld joint strength. The given optimum level sample was analyzed to study the most significant affecting RSW parameter, the failure mode, the weld nugget microstructure, and hardness values. The high heat input significantly affect the weld nugget temperature to reach and beyond the Î’-transus temperature. It led to an increase in the weld nugget diameter and the indentation depth. The expulsion appeared in the high heat input and decreased the weld nugget strength. It was caused by the molten material ejection in the fusion zone. The combination of high heat input and rapid air cooling at room temperature generated a martensite microstructure in the fusion zone. It increased the hardness, strength, and brittleness but decreased the ductility.
  • Publication
    Study on the effects of anodizing voltage to the AAO thin film dimensional properties synthesized by single step anodization method
    ( 2021-05-03)
    Shahidah Arina Shamsuddin
    ;
    Mohd Nazree Derman
    ;
    Uda Hashim
    ;
    Muhammad Faheem Mohd. Tahir
    Anodic aluminium oxide (AAO) thin film electrodes were synthesized by using a single step anodizing method in 15 °C of 0.3 M oxalic acid at five different anodizing voltage ranging from 20 V to 60 V, respectively. The effect of anodizing voltage to the AAO dimensional properties were about to be investigated. Morphological observations were all done by FESEM where the measurements and calculation were made by using ImageJ and formulas. To ensure that the pore sizes were totally depended on the anodizing voltage, etching process were done at constant duration for all samples. The correlation between all AAO dimensional properties like pores size, interpore distance, wall thickness, pore density, percentage of porosity and nanoporous oxide thickness were presented in a linear graph.
  • Publication
    Oxide Film Formation on Stainless Steel 304L by Anodizing Method with Different Power Sources
    ( 2023-01-01)
    Azmi N.S.
    ;
    Mohd Nazree Derman
    ;
    Zuraidawani Che Daud
    In order to generate a nanoporous oxide film, stainless steel 304L is anodized using an alternating current (AC) and direct current (DC) source in an ethylene glycol solution containing ammonium fluoride, NH4F, and water, H2O. This study focuses on the differences between AC and DC anodizing in terms of current density versus time response, thickness, and depth of the oxide film formed on the anodized specimens, surface roughness, and element composition of the specimens because there is limited study on AC anodizing of stainless steel. In 0.5% of 0.3M NH4F and 3% H2O in ethylene glycol solution, the AC and DC anodizing are conducted for 30 minutes at voltages ranging from 30V to 50V and 21.2 V to 35.4 V, respectively. The current density versus time response revealed that AC anodizing produced more current density than DC anodizing. As for the thickness and depth of the generated oxide films, only the specimens that have been anodized in AC indicated an increase in these films, whereas specimens that have been anodized in DC showed the metal dissolving as the specimens degraded. The surface roughness of AC anodized specimens reduced with increasing anodizing voltage, whereas DC anodized specimens increased with increasing anodizing voltage. The element composition of the anodized specimens revealed that the mass percentage of oxygen, O element is higher for AC anodized specimens compared to DC specimens. This suggests that AC anodizing on stainless steel might offer important advantages and should be further researched.